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GMC R1500 Suburban CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT GMC REPAIR SHOPS DON'T WANT YOU TO KNOW
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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about GMC R1500 Suburban car and truck
repair procedures including GMC engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your GMC R1500 Suburban automobile. Try the Automotix DIY solution today!
BRAKE SERVICE PROCEDURES FOR GMC R1500 Suburban AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported GMC R1500 Suburban cars and light trucks from 1990+.
HYDRAULIC BRAKE SYSTEMS, GENERAL MOTORS -> MASTER CYLINDER SERVICE -> Assemble -> BENDIX TYPE -> CAST IRON TYPE -> COMPOSITE TYPE -> DELCO MORAINE TYPE -> Disassemble -> Inspection -> TRACKER MODELS
Vehicle: 1991 GMC R1500 Suburban 5.7 V8 GAS
DELCO MORAINE TYPE
COMPOSITE TYPE
Refer to Figs. and when performing the following procedures.
Disassemble
- Remove master cylinder from vehicle.
- Remove reservoir cover and diaphragm. Discard old brake fluid in reservoir.
- Inspect cover and diaphragm. Replace if cut, cracked or deformed.
- Remove fluid level switch and proportioner valve assembly, if equipped.
- Depress primary piston and remove lock ring.
- Plug primary fluid outlet (outlet nearest to cowl when master cylinder is installed), then apply compressed air into secondary fluid outlet to remove primary and secondary pistons.
- R...
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FUEL FILTER REPLACEMENT PROCEDURES FOR GMC R1500 Suburban AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported GMC R1500 Suburban cars and light trucks sold in the U.S. for 1980+.
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Pressure Relief -> Except Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Tracker & Uplander -> Engine Fuel Pressure Service Port -> Engines Less Fuel Pressure Service Port
Vehicle: 1990 GMC R1500 Suburban 5.7 V8 GAS
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.
Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.
After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the vehicle relearns its adaptive strategy.
Engines Less Fuel Pressure ...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR GMC R1500 Suburban AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported GMC R1500 Suburban cars and light trucks from 1990+.
CV AXLE SHAFT, Replace
Vehicle: 1990 GMC R1500 Suburban 6.2 V8 DIESEL
- Raise and support vehicle.
- Remove wheel and tire assembly.
- Remove drive axle center cap, if equipped.
- Insert a drift or large screwdriver through brake caliper into one of the brake rotor vanes in order to prevent drive axle wheel drive shaft from turning.
- Remove nut and washer from hub. Do not reuse nut. A new nut must be used when installing wheel drive shaft.
- Using axle remover tool No. J 45859 or equivalent, press wheel drive shaft from hub.
- Remove bolts securing wheel dr...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR GMC R1500 Suburban AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported GMC R1500 Suburban cars and light trucks from 1990+.
Alternator, Replace
Vehicle: 1991 GMC R1500 Suburban 5.7 V8 GAS
- Disconnect battery ground cable.
- Disconnect terminal plug and battery lead from rear of alternator.
- Remove accessory drive belt.
- Remove alternator mounting bolts.
- Separate alternator from mounting bracket.
- Rem...
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MAINTENANCE LAMP RESET PROCEDURES FOR GMC R1500 Suburban AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported GMC R1500 Suburban cars and light trucks sold in the U.S. from 1990+.
General Motors Corp./Saturn Trucks -> Low Coolant Lamp ->
Vehicle: 1991 GMC R1500 Suburban 6.2 V8 DIESEL
This lamp should light when engine coolant level in the radiator drops below a predetermined le...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR GMC R1500 Suburban AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported GMC R1500 Suburban cars and light trucks from 1990+
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1991 GMC R1500 Suburban 6.2 V8 DIESEL
Lower
- Drain cooling system into a suitable container.
- Reposition hose clamp at radiator outlet and remove hose.
- Reposition hose clamp at water pump inlet and remove hose.
- Remove hose from vehicle.
- Reverse procedure...
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SERPENTINE BELT SERVICE PROCEDURES FOR GMC R1500 Suburban AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported GMC R1500 Suburban cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 1991 GMC R1500 Suburban 6.2 V8 DIESEL
- Rotate tensioner to release belt tension, using a 1/2 inch breaker bar with a 5/8 inch socket placed on tensioner pulley.
- Remove drive belt.
- Route b...
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COMPONENT LOCATION DIAGRAMS FOR GMC R1500 Suburban AUTOMOBILES
Component location diagrams for most GMC R1500 Suburban cars and light trucks sold in the U.S. from 1990+.
 Oil Pressure Switch Diagram for 1990 GMC R1500 Suburban 5.7 V8 GASComponents on diagram: |
 Servo Diagram for 1989 GMC R1500 Suburban 5.7 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR GMC R1500 Suburban AUTOMOBILES
OEM drawn wiring diagrams for most GMC R1500 Suburban cars and light trucks sold in the U.S.
 1988 GMC R1500 Suburban 5.7 V8 GAS Wiring DiagramComponents on diagram: |
 1989 GMC R1500 Suburban 6.2 V8 DIESEL Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR GMC R1500 Suburban AUTOMOBILES
OEM TSB listings for most GMC R1500 Suburban cars and light trucks sold in the U.S. from 1985+.
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Document: TAILGATE WINDOW CHIPPING - CONTACTING SCREW *87-T-33 Vehicle: 1987 GMC R1500 Suburban 6.2 V8 DIESEL Auto Systems: |
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Document: WARRANTY - MIDTRONICS CODE GENERATED BY J 42000 OR J 42000EU BATTERY TESTER REQUIRED FOR CLAIM PROCESSING ON LABOR OPERATION NO11O - REVISED Vehicle: 1989 GMC R1500 Suburban 5.7 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR GMC R1500 Suburban AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most GMC R1500 Suburban cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most GMC R1500 Suburban cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most GMC R1500 Suburban cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most GMC R1500 Suburban cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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